DRINKING WATER
73 Million Starts, Zero Maintenance: City Of Frederick Demonstrates Long-Term Reliability Of Beck Actuators
Continuous valve modulation often causes premature motor burnout in critical water infrastructure. Adopting a 100% duty cycle motor design eliminates repetitive maintenance, ensuring precise process control and long-term system reliability.
DRINKING WATER CASE STUDIES AND WHITE PAPERS
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![GettyImages-610650128 irrigation]( "Revolutionizing Irrigation In The Face Of Water Scarcity")
Revolutionizing Irrigation In The Face Of Water ScarcityAs the global water scarcity crisis intensifies, it’s clear that irrigation practices must play a central role in finding solutions. This blog delves into the pivotal connection between irrigation and water conservation.
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![WOL_terminal-island_article_385x250]( "L.A.'s Terminal Island Water Reclamation Plant Leverages Water Reuse To Protect Groundwater Supply")
L.A.'s Terminal Island Water Reclamation Plant Leverages Water Reuse To Protect Groundwater SupplyIn this article, Lance Thibodeaux, division manager for the Terminal Island water reclamation division at LA Sanitation and Environment, describes Terminal Island’s industry leading water reuse program and its long-time partnership with Xylem.
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![KLA]( "Drinking Up The Election: How Presidential Candidates Are Addressing Water Concerns")
Drinking Up The Election: How Presidential Candidates Are Addressing Water ConcernsElection season is in full swing and while it may not be the “hottest” topic being debated amongst presidential candidates, the topic of water isn’t being ignored as we approach November. Several candidates have addressed the challenges plaguing water and wastewater systems nationwide.
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![gettyimages-1034334912-170667a]( "Leveraging AMI For The Low Voltage Landscape")
Leveraging AMI For The Low Voltage LandscapeIn this white paper, explore ways that utilities are prioritizing grid management use cases and challenges that utilities face in capturing the full value of AMI data.
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A More Efficient Approach To EPA Stage 2 DBP Compliance
Everyone wants pathogen-free drinking water, and adding chlorine is a great way to get it. Unfortunately, the dirtier a water treatment plant (WTP)’s raw water inflow — in terms of natural organic matter (NOM) or microbial organisms — the more disinfection byproducts (DBPs) the chlorination process will generate in the form of trihalomethanes (THMs) and haloacetic acids (HAAs). Those DBPs increase the risk of non-compliance with the U.S. EPA’s Disinfectants and Disinfection Byproducts Rules. Choosing the right instrumentation to measure NOM through spectral absorption coefficients (SACs) can have a big impact on treatment strategies — in terms of both costs and compliance performance.
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![How Harmful Algal Blooms Can Affect Your Water Treatment Plant]( "How Harmful Algal Blooms Can Affect Your Water Treatment Plant")
How Harmful Algal Blooms Can Affect Your Water Treatment PlantPre-pandemic, headlines were dominated by the red tide along Florida’s Gulf Coast, which persisted for months, causing human respiratory illnesses, the deaths of dozens of Florida’s beloved dolphins and manatees, and hundreds of millions of dollars in lost tourism revenue and cleanup costs. Here are insights on how to forestall becoming the next city to make national headlines related to harmful algal blooms.
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![pipeline 450x300]( "Smarter Pipeline Condition Assessment Starts With The Right Technology")
Smarter Pipeline Condition Assessment Starts With The Right TechnologyAdvanced pipeline assessment technologies help utilities detect defects, locate leaks, and prioritize repairs — enabling smarter capital planning, reduced failures, and more resilient water infrastructure management.
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![meter_pic]( "Moving Beyond Flow Measurement To Unlock Utility Efficiency")
Moving Beyond Flow Measurement To Unlock Utility EfficiencySmart meters offer the opportunity for utilities to do significantly more with the same number of devices, reducing operational costs, improving response times, and contributing to overall system sustainability.
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![composing-LT500]( "Alternatives To Pump Alternation Schemes Using Advanced Level Controllers")
Alternatives To Pump Alternation Schemes Using Advanced Level ControllersThis article will focus on the pump control functionality of advanced level controllers and how they can help to optimize your process.
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Ozone System Delivers For Miramar Water Treatment Plant Upgrade And Expansion Project
A combination of growing demand, aging infrastructure and regulatory requirements acted as drivers for a new ozone system at the Miramar Water Treatment Plant in San Diego, CA.
DRINKING WATER APPLICATION NOTES
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Improved Determination Of Volatile Organic Compounds In Water By SPME And GC/MS6/21/2018
The analysis of water for volatile organic compounds is important due to their toxicity. The current methods for this determination lack of sensitivity, selectivity or capability for automation. This paper presents the new ISO 17943 Standard using Solid Phase Microextraction (SPME) and GC/MS. The sample preparation by SPME enables limits of detection and easy automation of the whole method. GC/MS provides the required sensitivity and selectivity. This ISO Standard was validated by an interlaboratory trial, which results confirm the outstanding performance for this method.
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Ultrasonic Level Measurement In Water And Wastewater Plants5/19/2016
Radar technology is often viewed as the “best” method of level measurement, but this isn’t necessarily true in the water industry.
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Cloth Media Filtration Removes Coal Ash And Coal Fines At Power Plants1/15/2019
Coal-fired power plants generate coal fines and coal ash from a number of sources, including coal combustion residuals (CCR), particularly fly and bottom ash from coal furnaces, and coal pile runoff during rain events. In support of an industry-wide effort to reduce, improve, and remove coal ash ponds, a variety of technologies have been tested and employed. Read the full application note to learn more.
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Bottled Water Industry: Liquid Analytical Solutions11/10/2013
Americans consume more than 9.1 billion gallons of bottled water annually - an average of twenty nine gallons per person every year.
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Water Treatment In Boilers And Cooling Towers10/29/2021
Most people recognize problems associated with corrosion. Effects from scale deposits, however, are equally important. For example, as little as 1/8" of scale can reduce the efficiency of a boiler by 18% or a cooling tower heat exchanger by 40%!
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Secret To Disinfection Monitoring For High Chlorine Residual Wastewater Applications8/2/2015
Some wastewater applications require chlorine residuals greater than can be effectively monitored using DPD due to the oxidation of the Wurster dye to a colorless Imine. Such applications include industrial wastewater processes that inherently have a high chlorine demand thereby requiring a more robust monitoring method.
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Application Note: Troubleshooting A pH Electrode1/26/2011
Many factors affect performance of a pH electrode. When performance degrades, it is always a challenge for the analyst to identify the cause. Common troubleshooting procedures, which include evaluation of slope, electrode drift, time response, and accuracy, take considerable time. By Thermo Fisher Scientific
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The Basics: Testing RO Quality4/28/2014
Osmosis is the phenomenon of lower dissolved solids in water passing through a semi-permeable membrane into higher dissolved solids water until a near equilibrium is reached.
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Solution For Algae Blooms12/17/2015
Harmsco® Filtration Products is pleased to offer a solution to the ever increasing blue-algae blooms in water sources. A multi-barrier approach is necessary to physically remove intact (algae and cyanobacteria) before they rupture in the treatment process and then remove extracellular cyanobacteria through adsorption.
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How To Install A Submersible Pump In Discharge Tubes11/28/2012
In the fields of water and waste water technology, submersible pumps represent a viable economic and technical alternative to conventional, dry-installed pumps. In particular, they offer a number of handling advantages during maintenance and installation work.
DRINKING WATER PRODUCTS
The OPTIFLUX 5100 is an electromagnetic flowmeter (EMF) with a high-tech ceramic measuring tube for demanding process flows. It is particularly suited for applications in the chemical processing industry, the minerals and mining sector as well as in any other sectors of industry where highly aggressive or abrasive liquids occur. The EMF is the ideal solution for harsh process conditions with temperatures up to +180°C / +356°F, aggressive chemicals and solid content (up to 10%).
Blue-White’s Acrylic Variable Area Flow Meters are individually annealed for added strength. They are available in several styles for inline, panel mount, and closed pipe installations and have a broad range of flow rates.
The Series 1420 CHLOR-A-VAC® affords high efficiency addition and mixing of gases and liquid chemicals resulting in substantial chemical cost savings.
This compact instrument has been designed specifically to demonstrate and test POU reverse osmosis or distillation systems. By measuring electrical conductivity, it will quickly determine the parts per million/Total Dissolved Solids (ppm/TDS) of any drinking water
De Nora Water Technologies can help you to optimise your electrochlorination system operation to deliver consistent life long performance.
The MEGA-STOP® is a safe and economical “over-insertion” solution. With it, you can properly and quickly assemble pipe joints each and every time.
LATEST INSIGHTS ON DRINKING WATER
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![Faucet with water drop-GettyImages-183356556]( "Protecting The World's Most Essential Resource: How Utilities Can Navigate Growing Risks To Drinking Water Supply")
Protecting drinking water supply has become more complex, more urgent, and less predictable as utilities navigate a convergence of pressures, including climate variability, emerging contaminants, and accelerating population growth. Together, these trends are redefining what it means to deliver safe, reliable drinking water. Yet within this disruption lies a critical opportunity.
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![A depleted reservoir in the Yorkshire countryside-GettyImages-2222868312]( "UK Reservoirs, Water Shortages, And Legionella Risks")
Is there a clear link between a less plentiful water supply and an increase in Legionella in our domestic water systems?
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![Communication network, digital transformation-GettyImages-2162072598]( "AMI's Next Phase: Turning Meter Data Into Operational Value")
A recent series of workshops convened by The Water Research Foundation (WRF) underscores how utilities are beginning to use AMI data to support conservation, improve system performance, and move toward more proactive operations. The takeaway is straightforward: most utilities now have the data; the challenge is putting it to work.
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![GettyImages-2167814769]( "The Circular Dividend: Managing Water As A Strategic Boardroom Asset")
For decades, industrial operators have treated water through a transactional lens as a commodity utility expense to be bought, utilized, treated, and discharged. However, the operational realities of a water-stressed world require a profound organizational shift.
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![Futuristic digital geology terrain, digital data telemetry-GettyImages-2171946409]( "Why The Water Sector's AI Ambitions Depend On Better Connectivity")
For AI to deliver real operational value, it needs a constant flow of reliable operational data. AI systems are relentlessly data-hungry, and the more data, the better. Yet, accessing this data remains a major challenge in the utilities sector, with remote reservoirs, wastewater treatment works, and sprawling infrastructure often located a long way from traditional cellular networks.
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![1 4-dioxane]( "1,4-Dioxane And Advanced Oxidation: Designing Treatment Systems Around Radical Chemistry")
Learn why advanced oxidation processes are critical for treating 1,4-dioxane and how ozone-based systems can improve contaminant destruction and water quality.
DRINKING WATER VIDEOS
The recoating of a potable water tank in Lancaster, PA, included an already tight timeframe and several challenges that cause delays.
ABOUT DRINKING WATER
In most developed countries, drinking water is regulated to ensure that it meets drinking water quality standards. In the U.S., the Environmental Protection Agency (EPA) administers these standards under the Safe Drinking Water Act (SDWA).
Drinking water considerations can be divided into three core areas of concern:
- Source water for a community’s drinking water supply
- Drinking water treatment of source water
- Distribution of treated drinking water to consumers
Drinking Water Sources
Source water access is imperative to human survival. Sources may include groundwater from aquifers, surface water from rivers and streams and seawater through a desalination process. Direct or indirect water reuse is also growing in popularity in communities with limited access to sources of traditional surface or groundwater.
Source water scarcity is a growing concern as populations grow and move to warmer, less aqueous climates; climatic changes take place and industrial and agricultural processes compete with the public’s need for water. The scarcity of water supply and water conservation are major focuses of the American Water Works Association.
Drinking Water Treatment
Drinking Water Treatment involves the removal of pathogens and other contaminants from source water in order to make it safe for humans to consume. Treatment of public drinking water is mandated by the Environmental Protection Agency (EPA) in the U.S. Common examples of contaminants that need to be treated and removed from water before it is considered potable are microorganisms, disinfectants, disinfection byproducts, inorganic chemicals, organic chemicals and radionuclides.
There are a variety of technologies and processes that can be used for contaminant removal and the removal of pathogens to decontaminate or treat water in a drinking water treatment plant before the clean water is pumped into the water distribution system for consumption.
The first stage in treating drinking water is often called pretreatment and involves screens to remove large debris and objects from the water supply. Aeration can also be used in the pretreatment phase. By mixing air and water, unwanted gases and minerals are removed and the water improves in color, taste and odor.
The second stage in the drinking water treatment process involves coagulation and flocculation. A coagulating agent is added to the water which causes suspended particles to stick together into clumps of material called floc. In sedimentation basins, the heavier floc separates from the water supply and sinks to form sludge, allowing the less turbid water to continue through the process.
During the filtration stage, smaller particles not removed by flocculation are removed from the treated water by running the water through a series of filters. Filter media can include sand, granulated carbon or manufactured membranes. Filtration using reverse osmosis membranes is a critical component of removing salt particles where desalination is being used to treat brackish water or seawater into drinking water.
Following filtration, the water is disinfected to kill or disable any microbes or viruses that could make the consumer sick. The most traditional disinfection method for treating drinking water uses chlorine or chloramines. However, new drinking water disinfection methods are constantly coming to market. Two disinfection methods that have been gaining traction use ozone and ultra-violet (UV) light to disinfect the water supply.
Drinking Water Distribution
Drinking water distribution involves the management of flow of the treated water to the consumer. By some estimates, up to 30% of treated water fails to reach the consumer. This water, often called non-revenue water, escapes from the distribution system through leaks in pipelines and joints, and in extreme cases through water main breaks.
A public water authority manages drinking water distribution through a network of pipes, pumps and valves and monitors that flow using flow, level and pressure measurement sensors and equipment.
Water meters and metering systems such as automatic meter reading (AMR) and advanced metering infrastructure (AMI) allows a water utility to assess a consumer’s water use and charge them for the correct amount of water they have consumed.